Fig. 15From: Understanding a mass in the paraspinal region: an anatomical approachHaemangioma in a 37-year-old female presenting with mild paraspinal pain and soft and slow-growing tumefaction. Contrast-enhanced axial CT scan reconstruction (a), axial T2WI (b) and axial T1WI (d) show a bilobed mass in the erector spinae muscles, the psoas muscle and the quadratus lumborum muscle with phlebolite (white arrow) and fat content (black arrow). Contrast-enhanced axial T1WI with fat saturation (e) demonstrates heterogeneous enhancement (a). On US, the mass appears as an ill-defined hypoechoic mass with multiple spaces within (white arrows) (f). The yellow star shows the epicentre of the massBack to article page